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Grand Seiko 'Moonlight Mount Iwate' 44GS Hi-Beat GMT 40mm Mens Watch SBGJ267


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  • Heritage Collection – honouring the watches that defined Grand Seiko
  • Designed to offer a wristwatch with sparkle and quality
  • Presented in a cutting-edge 40mm Ever Brilliant Steel case
  • Unique design with flawless, mirror-like surfaces
  • Driven by the Hi-Beat 9S86 with GMT function


When Grand Seiko was born in 1960, each watch was designed with precision as its primary aim, and each one looked different to the rest. But in 1967, everything changed. The brand’s designers were asked to create a watch that would set a style blueprint and design language for the future.

The result was the 44GS – a watch that embodied the nine design elements designed in the Grand Seiko style. Today’s model offers a modern re-interpretation of the original.

Originally designed to achieve a brilliantly shining watch, this modern interpretation features flat surfaces to create a flawless, mirror-like effect.


A classic design is reinvented for the modern day, housed in cutting-edge, anti-corrosive Ever Brilliant Steel – an alloy with a pitting resistance 1.7 times that of the steel typically used in luxury watches.

The 40mm case is paired with a transparent case back, dual curved sapphire crystal, and a co-ordinating bracelet.

The rich blue dial features a beautiful pattern, evoking the captivating surfaces of Mt. Iwate, an imposing peak visible from the Grand Seiko Studio Shizukuishi.

The Hi-Beat Calibre 9S86 movement offers flawless precision and a 55-hour power reserve. GMT functionality means this timepiece can also tell the time in two places simultaneously – the 24-hour hand can be used to track the time in one time zone, while the local time can be monitored using the conventional hour hand.

Delivery & Returns

Standard Delivery (Est 1-3 Days) - Free

Our secure shipping service delivers Monday - Saturday between 8:00 a.m. and 6:00 p.m. For security purposes, every delivery requires an adult signature; Betteridge does not deliver to P.O. boxes nor third party forwarding services. To find out more about delivery, click here. Tracking information is available upon request.

If you have any questions or concerns regarding your order, the Betteridge E-Commerce team can be reached at 888-556-2127, during the following times (Eastern Time):

- Monday - Saturday: 9:30 a.m. – 7:00 p.m

- Sunday: 9:00 a.m. – 5:00 p.m

- Closed Easter Sunday, Thanksgiving day and Christmas day

Alternatively, you can email the E-commerce team at

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